FI930954A - Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla - Google Patents

Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla Download PDF

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Publication number
FI930954A
FI930954A FI930954A FI930954A FI930954A FI 930954 A FI930954 A FI 930954A FI 930954 A FI930954 A FI 930954A FI 930954 A FI930954 A FI 930954A FI 930954 A FI930954 A FI 930954A
Authority
FI
Finland
Prior art keywords
washer
pulp
bleaching
washing
chlorine
Prior art date
Application number
FI930954A
Other languages
English (en)
Swedish (sv)
Other versions
FI93232C (fi
FI93232B (fi
FI930954A0 (fi
Inventor
Kaj Henricson
Original Assignee
Ahlstroem Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8537491&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI930954(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ahlstroem Oy filed Critical Ahlstroem Oy
Priority to FI930954A priority Critical patent/FI93232C/fi
Publication of FI930954A0 publication Critical patent/FI930954A0/fi
Priority to DE69332508T priority patent/DE69332508T2/de
Priority to PCT/FI1993/000222 priority patent/WO1994020673A1/en
Priority to AT93910051T priority patent/ATE176808T1/de
Priority to EP93910051A priority patent/EP0687321B1/en
Priority to JP51962394A priority patent/JP3276083B2/ja
Priority to EP98113684A priority patent/EP0884415B1/en
Priority to ES98113684T priority patent/ES2186948T3/es
Priority to RU95122814A priority patent/RU2126471C1/ru
Priority to CA002157109A priority patent/CA2157109C/en
Priority to PT98113684T priority patent/PT884415E/pt
Priority to ES93910051T priority patent/ES2130260T3/es
Priority to BR9307858A priority patent/BR9307858A/pt
Priority to AT98113684T priority patent/ATE228181T1/de
Priority to AU53705/94A priority patent/AU5370594A/en
Priority to DE69323566T priority patent/DE69323566T2/de
Priority to FI934036A priority patent/FI98223B/fi
Publication of FI930954A publication Critical patent/FI930954A/fi
Publication of FI93232B publication Critical patent/FI93232B/fi
Application granted granted Critical
Publication of FI93232C publication Critical patent/FI93232C/fi
Priority to FI954093A priority patent/FI954093A/fi
Priority to NO953444A priority patent/NO953444L/no
Priority to US08/929,082 priority patent/US6010594A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
FI930954A 1993-03-03 1993-03-03 Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla FI93232C (fi)

Priority Applications (20)

Application Number Priority Date Filing Date Title
FI930954A FI93232C (fi) 1993-03-03 1993-03-03 Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla
DE69323566T DE69323566T2 (de) 1993-03-03 1993-05-25 Verfahren zum bleichen von zellstoff mit chlorfreien chemikalien
CA002157109A CA2157109C (en) 1993-03-03 1993-05-25 Method of bleaching pulp with chlorine-free chemicals
BR9307858A BR9307858A (pt) 1993-03-03 1993-05-25 Processo para o processamento de polpa que contem metais pesados tais como manganês
AT93910051T ATE176808T1 (de) 1993-03-03 1993-05-25 Verfahren zum bleichen von zellstoff mit chlorfreien chemikalien
EP93910051A EP0687321B1 (en) 1993-03-03 1993-05-25 Method of bleaching pulp with chlorine-free chemicals
JP51962394A JP3276083B2 (ja) 1993-03-03 1993-05-25 塩素を含まない薬品によるパルプ漂白法
EP98113684A EP0884415B1 (en) 1993-03-03 1993-05-25 Method of washing pulp in connection with bleaching
ES98113684T ES2186948T3 (es) 1993-03-03 1993-05-25 Procedimiento para el lavado de pasta de papel durante el blanqueado.
RU95122814A RU2126471C1 (ru) 1993-03-03 1993-05-25 Способ производства целлюлозы без применения хлорных химикатов
DE69332508T DE69332508T2 (de) 1993-03-03 1993-05-25 Verfahren zum Waschen von Zellstoff beim Bleichen
PT98113684T PT884415E (pt) 1993-03-03 1993-05-25 Metodo para a lavagem de polpa em conjunto com o branqueamento
ES93910051T ES2130260T3 (es) 1993-03-03 1993-05-25 Procedimiento de blanqueamiento de pasta de pulpa por medio de productos quimicos libres de cloro.
PCT/FI1993/000222 WO1994020673A1 (en) 1993-03-03 1993-05-25 Method of bleaching pulp with chlorine-free chemicals
AT98113684T ATE228181T1 (de) 1993-03-03 1993-05-25 Verfahren zum waschen von zellstoff beim bleichen
AU53705/94A AU5370594A (en) 1993-03-03 1993-05-25 Method of bleaching pulp with chlorine-free chemicals
FI934036A FI98223B (fi) 1993-03-03 1993-09-15 Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla
FI954093A FI954093A (fi) 1993-03-03 1995-08-30 Menetelmä massan käsittelemiseksi kloorittomilla kemikaaleilla
NO953444A NO953444L (no) 1993-03-03 1995-09-01 Fremgangsmåte for bleking av masse med klorfrie kjemikalier
US08/929,082 US6010594A (en) 1993-03-03 1997-09-15 Method of bleaching pulp with chlorine-free chemicals wherein a complexing agent is added immediately after an ozone bleach stage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI930954 1993-03-03
FI930954A FI93232C (fi) 1993-03-03 1993-03-03 Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla

Publications (4)

Publication Number Publication Date
FI930954A0 FI930954A0 (fi) 1993-03-03
FI930954A true FI930954A (fi) 1994-09-04
FI93232B FI93232B (fi) 1994-11-30
FI93232C FI93232C (fi) 1995-03-10

Family

ID=8537491

Family Applications (3)

Application Number Title Priority Date Filing Date
FI930954A FI93232C (fi) 1993-03-03 1993-03-03 Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla
FI934036A FI98223B (fi) 1993-03-03 1993-09-15 Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla
FI954093A FI954093A (fi) 1993-03-03 1995-08-30 Menetelmä massan käsittelemiseksi kloorittomilla kemikaaleilla

Family Applications After (2)

Application Number Title Priority Date Filing Date
FI934036A FI98223B (fi) 1993-03-03 1993-09-15 Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla
FI954093A FI954093A (fi) 1993-03-03 1995-08-30 Menetelmä massan käsittelemiseksi kloorittomilla kemikaaleilla

Country Status (13)

Country Link
EP (2) EP0884415B1 (fi)
JP (1) JP3276083B2 (fi)
AT (2) ATE176808T1 (fi)
AU (1) AU5370594A (fi)
BR (1) BR9307858A (fi)
CA (1) CA2157109C (fi)
DE (2) DE69323566T2 (fi)
ES (2) ES2130260T3 (fi)
FI (3) FI93232C (fi)
NO (1) NO953444L (fi)
PT (1) PT884415E (fi)
RU (1) RU2126471C1 (fi)
WO (1) WO1994020673A1 (fi)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89516B (fi) 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
FI103818B1 (fi) * 1995-02-21 1999-09-30 Ahlstrom Machinery Oy Menetelmä massan valkaisemiseksi
US20080110584A1 (en) * 2006-11-15 2008-05-15 Caifang Yin Bleaching process with at least one extraction stage
FR2910027B1 (fr) * 2006-12-13 2009-11-06 Itt Mfg Enterprises Inc Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature
AU2010253926B2 (en) 2009-05-28 2016-02-18 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same
WO2012170183A1 (en) 2011-05-23 2012-12-13 Gp Cellulose Gmbh Softwood kraft fiber having improved whiteness and brightness and methods of making and using the same
BR112014017164A8 (pt) 2012-01-12 2017-07-04 Gp Cellulose Gmbh método para produzir polpa kraft oxidada e fibras kraft de madeira macia
CN106968127B (zh) 2012-04-18 2019-03-01 Gp纤维素股份有限公司 用于粘胶溶液的针叶木牛皮纸浆
WO2014122533A2 (en) 2013-02-08 2014-08-14 Gp Cellulose Gmbh Softwood kraft fiber having an improved a-cellulose content and its use in the production of chemical cellulose products
CA2901665A1 (en) 2013-03-14 2014-09-18 Gp Cellulose Gmbh A method of making highly functional, low viscosity kraft fiber using an acidic bleaching sequence and a fiber made by the process
CN108049234B (zh) 2013-03-15 2020-12-08 Gp 纤维素股份有限公司 一种经化学改性的牛皮纸纤维
FR3007044B1 (fr) * 2013-06-13 2016-01-15 Air Liquide Procede de traitement des pates papetieres chimiques par traitement a l'ozone en presence d'ions magnesium
AT515152B1 (de) * 2013-11-26 2015-12-15 Chemiefaser Lenzing Ag Verfahren zum Vorbehandeln von rückgewonnenen Baumwollfasern zur Verwendung bei der Herstellung von Formkörpern aus regenerierter Cellulose
US10865519B2 (en) 2016-11-16 2020-12-15 Gp Cellulose Gmbh Modified cellulose from chemical fiber and methods of making and using the same
SE545759C2 (en) * 2022-06-20 2024-01-02 Valmet Oy Method for bleaching pulp from recycled textile material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO144711C (no) * 1978-04-04 1981-10-21 Myrens Verksted As Fremgangsmaate til bleking av oksygendelignifiserte celluloseholdige masser med ozon
US4310384A (en) * 1979-01-11 1982-01-12 Weyerhaeuser Company Reducing chemical transfer between treatment stages
FI74752C (fi) * 1986-03-20 1992-12-01 Ahlstroem Oy Foerfarande och anordning foer tvaettning av cellulosa
ATE97179T1 (de) * 1989-06-06 1993-11-15 Eka Nobel Ab Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
AU636173B2 (en) * 1989-10-30 1993-04-22 Lenzing Aktiengesellschaft Method for the chlorine-free bleaching of pulps
US5567262A (en) * 1991-04-16 1996-10-22 Ahlstrom Machinery Inc. Two stage pressure diffuser
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
AT400153B (de) * 1991-05-02 1995-10-25 Voest Alpine Ind Anlagen Verfahren zum bleichen von xylan- und lignocellulosehältigen materialien

Also Published As

Publication number Publication date
FI93232C (fi) 1995-03-10
FI954093A (fi) 1995-10-17
ES2186948T3 (es) 2003-05-16
PT884415E (pt) 2003-03-31
RU2126471C1 (ru) 1999-02-20
WO1994020673A1 (en) 1994-09-15
CA2157109A1 (en) 1994-09-15
NO953444D0 (no) 1995-09-01
EP0687321A1 (en) 1995-12-20
DE69332508T2 (de) 2003-07-03
EP0687321B1 (en) 1999-02-17
FI934036A (fi) 1994-09-04
ES2130260T3 (es) 1999-07-01
ATE228181T1 (de) 2002-12-15
BR9307858A (pt) 1996-02-27
EP0884415A1 (en) 1998-12-16
FI93232B (fi) 1994-11-30
EP0884415B1 (en) 2002-11-20
AU5370594A (en) 1994-09-26
FI930954A0 (fi) 1993-03-03
DE69332508D1 (de) 2003-01-02
JP3276083B2 (ja) 2002-04-22
DE69323566T2 (de) 1999-07-15
ATE176808T1 (de) 1999-03-15
FI98223B (fi) 1997-01-31
FI934036A0 (fi) 1993-09-15
CA2157109C (en) 2002-09-03
DE69323566D1 (de) 1999-03-25
JPH08509781A (ja) 1996-10-15
NO953444L (no) 1995-10-19
FI954093A0 (fi) 1995-08-30

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